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-rw-r--r--arch/m68k/include/asm/irq.h81
1 files changed, 81 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/irq.h b/arch/m68k/include/asm/irq.h
new file mode 100644
index 0000000000..7829e955ca
--- /dev/null
+++ b/arch/m68k/include/asm/irq.h
@@ -0,0 +1,81 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _M68K_IRQ_H_
+#define _M68K_IRQ_H_
+
+/*
+ * This should be the same as the max(NUM_X_SOURCES) for all the
+ * different m68k hosts compiled into the kernel.
+ * Currently the Atari has 72 and the Amiga 24, but if both are
+ * supported in the kernel it is better to make room for 72.
+ * With EtherNAT add-on card on Atari, the highest interrupt
+ * number is 140 so NR_IRQS needs to be 141.
+ */
+#if defined(CONFIG_COLDFIRE)
+#define NR_IRQS 256
+#elif defined(CONFIG_VME) || defined(CONFIG_SUN3) || \
+ defined(CONFIG_SUN3X) || defined(CONFIG_VIRT)
+#define NR_IRQS 200
+#elif defined(CONFIG_ATARI)
+#define NR_IRQS 141
+#elif defined(CONFIG_MAC)
+#define NR_IRQS 72
+#elif defined(CONFIG_Q40)
+#define NR_IRQS 43
+#elif defined(CONFIG_AMIGA) || !defined(CONFIG_MMU)
+#define NR_IRQS 32
+#elif defined(CONFIG_APOLLO)
+#define NR_IRQS 24
+#elif defined(CONFIG_HP300)
+#define NR_IRQS 8
+#else
+#define NR_IRQS 0
+#endif
+
+#if defined(CONFIG_M68020) || defined(CONFIG_M68030) || \
+ defined(CONFIG_M68040) || defined(CONFIG_M68060)
+
+/*
+ * Interrupt source definitions
+ * General interrupt sources are the level 1-7.
+ * Adding an interrupt service routine for one of these sources
+ * results in the addition of that routine to a chain of routines.
+ * Each one is called in succession. Each individual interrupt
+ * service routine should determine if the device associated with
+ * that routine requires service.
+ */
+
+#define IRQ_SPURIOUS 0
+
+#define IRQ_AUTO_1 1 /* level 1 interrupt */
+#define IRQ_AUTO_2 2 /* level 2 interrupt */
+#define IRQ_AUTO_3 3 /* level 3 interrupt */
+#define IRQ_AUTO_4 4 /* level 4 interrupt */
+#define IRQ_AUTO_5 5 /* level 5 interrupt */
+#define IRQ_AUTO_6 6 /* level 6 interrupt */
+#define IRQ_AUTO_7 7 /* level 7 interrupt (non-maskable) */
+
+#define IRQ_USER 8
+
+struct irq_data;
+struct irq_chip;
+struct irq_desc;
+extern unsigned int m68k_irq_startup(struct irq_data *data);
+extern unsigned int m68k_irq_startup_irq(unsigned int irq);
+extern void m68k_irq_shutdown(struct irq_data *data);
+extern void m68k_setup_auto_interrupt(void (*handler)(unsigned int,
+ struct pt_regs *));
+extern void m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt);
+extern void m68k_setup_irq_controller(struct irq_chip *,
+ void (*handle)(struct irq_desc *desc),
+ unsigned int irq, unsigned int cnt);
+
+extern unsigned int irq_canonicalize(unsigned int irq);
+
+#else
+#define irq_canonicalize(irq) (irq)
+#endif /* !(CONFIG_M68020 || CONFIG_M68030 || CONFIG_M68040 || CONFIG_M68060) */
+
+asmlinkage void do_IRQ(int irq, struct pt_regs *regs);
+extern atomic_t irq_err_count;
+
+#endif /* _M68K_IRQ_H_ */